must skimp
Regular verb: skimp - skimped- skimped

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must skimp
you must skimp
he must skimp
we must skimp
you must skimp
they must skimp 	I must be skimping
you must be skimping
he must be skimping
we must be skimping
you must be skimping
they must be skimping	I must have skimped
you must have skimped
he must have skimped
we must have skimped
you must have skimped
they must have skimped	I must have been skimping
you must have been skimping
he must have been skimping
we must have been skimping
you must have been skimping
they must have been skimping	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't skimp
you mustn't skimp
he mustn't skimp
we mustn't skimp
you mustn't skimp
they mustn't skimp 	I mustn't be skimping
you mustn't be skimping
he mustn't be skimping
we mustn't be skimping
you mustn't be skimping
they mustn't be skimping	I mustn't have skimped
you mustn't have skimped
he mustn't have skimped
we mustn't have skimped
you mustn't have skimped
they mustn't have skimped	I mustn't have been skimping
you mustn't have been skimping
he mustn't have been skimping
we mustn't have been skimping
you mustn't have been skimping
they mustn't have been skimping	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I skimp?
must you skimp?
must he skimp?
must we skimp?
must you skimp?
must they skimp? 	must I be skimping?
must you be skimping?
must he be skimping?
must we be skimping?
must you be skimping?
must they be skimping? 	must I have skimped?
must you have skimped?
must he have skimped?
must we have skimped?
must you have skimped?
must they have skimped? 	must I have been skimping?
must you have been skimping?
must he have been skimping?
must we have been skimping?
must you have been skimping?
must they have been skimping? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I skimp?
mustn't you skimp?
mustn't he skimp?
mustn't we skimp?
mustn't you skimp?
mustn't they skimp? 	mustn't I be skimping?
mustn't you be skimping?
mustn't he be skimping?
mustn't we be skimping?
mustn't you be skimping?
mustn't they be skimping? 	mustn't I have skimped?
mustn't you have skimped?
mustn't he have skimped?
mustn't we have skimped?
mustn't you have skimped?
mustn't they have skimped? 	mustn't I have been skimping?
mustn't you have been skimping?
mustn't he have been skimping?
mustn't we have been skimping?
mustn't you have been skimping?
mustn't they have been skimping?